What this MCCB carries and where it fits
The Siemens SENTRON 3VA2225-6JQ32-0HH0 is a 3-pole molded case circuit breaker rated for a continuous current Iu of 250 A, with an ETU560 electronic trip unit configured for line protection. The interrupting ratings are substantial: 242 kA at 240 V, 187 kA at both 415 V and 440 V, 121 kA at 500 V, and 6 kA at 690 V — so it handles high-fault-capacity mains feeders without cascading upstream. The 250 A rating holds flat through 50 °C, then derates to 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C; in a warm panel you size for the derated figure, not the nameplate. Panel dimensions are 181 mm high, 105 mm wide, 86 mm deep — standard SENTRON 3VA2 footprint, mounts on a DIN rail or bolted directly.
Trip unit, auxiliaries, and communication
The ETU560 electronic release offers adjustable long-time, short-time, instantaneous, and ground-fault protection — the ground-fault sensing uses summation current formation on the L-conductor. A shunt trip (STL) is integrated as the auxiliary release; the part also carries 2 auxiliary switches plus 1 trip alarm switch (HQ configuration). Communication function is present, so this breaker can report status and trip events to a higher-level system. The basic switch module is order code 3VA2225-6JQ32-0AA0, and the integrated auxiliary trip is 3VA9688-0BL30 — useful to know if you're stocking spares for the same panel.